The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2025
Filed:
Sep. 26, 2022
Applicant:
Daido Steel Co., Ltd., Nagoya, JP;
Inventors:
Kazuki Minami, Nagoya, JP;
Yuta Kimura, Nagoya, JP;
Assignee:
Daido Steel Co., Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/04 (2006.01); C01B 33/06 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/587 (2010.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); C01B 33/06 (2013.01); H01B 1/04 (2013.01); H01M 4/386 (2013.01); H01M 4/587 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C01P 2006/20 (2013.01); C01P 2006/40 (2013.01);
Abstract
The present invention relates to an electrode material for lithium ion battery, containing: a graphite powder; and a Si alloy composite powder, in which the Si alloy composite powder has an average particle diameter of 5 μm or less and contains Si particles, Si—X compound particles (X=Fe, Ni, Cr, Co, Mn, Zr, or Ti), and at least one of Sn—Y compound particles and Al—Y compound particles (Y=Cu, Fe, Ni, Cr, Co, Mn, Zr, or Ti), a proportion of the Si particles in the Si alloy composite powder is 30 mass % to 95 mass %, and a coverage of the Si alloy composite powder on a surface of graphite particles is 5% or more.